Jesus says: “But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only” (Matthew 24:36).
“Watch therefore: for ye know not what hour your Lord doth come” (Matthew 24:42).
“For as the lightning cometh out of the east, and shineth even unto the west; so shall also the coming of the Son of man be” (Matthew 24:27).
“Be ye therefore ready also: for the Son of man cometh at an hour when ye think not” (Luke 12:40).
“Behold, he cometh with clouds; and every eye shall see him, and they also which pierced him: and all kindreds of the earth shall wail because of him. Even so, Amen” (Revelation 1:7).
“Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame” (Revelation 16:15).
“And, behold, I come quickly; and my reward is with me, to give every man according as his work shall be” (Revelation 22:12).
“He which testifieth these things saith, Surely I come quickly. Amen. Even so, come, Lord Jesus. The grace of our Lord Jesus Christ be with you all. Amen” (Revelation 22:20-21).